MolluscaBase eds. (2021). MolluscaBase.
Photinula expansa (G. B. Sowerby I, 1838). Accessed through: RAS (Eds.) (2021) Register of Antarctic Species at: http://ras.biodiversity.aq/aphia.php?p=taxdetails&id=197368 on 2025-06-05
RAS (Eds.) (2025). Register of Antarctic Species.
Photinula expansa (G. B. Sowerby I, 1838). Accessed at: https://ras.biodiversity.aq/aphia.php/aphia.php?p=taxdetails&id=197368 on 2025-06-05